Paper · 1997 · Journal of the Japanese Society of Revegetation Technology

Effects of Light and Soil Moisture Condition on the Growth of Seedlings for Quercus serrataand Quercus variabilis

Naoyuki NISHIMURA; Takeshi OTA; Keiji SAKAMOTO; et al.

11
claims
22
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

光条件 (相対照度13%, 10%, 30%) と土壌水分条件 (土壌含水率: 5%, 10%, 20%) がコナラとアベマキの実生の成長に及ぼす影響を明らかにするために実験を行った.コナラの実生の発生率は土壌水分5%区で他の処理区に比べても, また, アベマキに比べても有意に低かった.実生の発生開始日から発生完了日までの期間は, 両樹種とも土壌水分20%区で最も短かった.両樹種の実生の生存率は処理区間や樹種間による違いはなかった.両樹種の各器官の乾重は相対照度が高くなるほど, また, 土壌含水率が高くなるほど大きくなる傾向があった, 土壌含水率が20%から10%に減少すると, コナラでは各器官の乾重の減少割合が小さかったのに対して, アベマキではその減少割合が大きかった.コナラでは相対照度が低下してもT/R比や葉の乾重の割合はほぼ一定であったのに対して, アベマキでは相対照度が10%から3%に低下するとT/R比や葉の乾重の割合が増加する傾向があった, また, 両樹種とも土壌含水率が低くなるほどT/R比や葉の乾重の割合が減少する傾向があったが, コナラでは土壌含水率が20%から10%に低下した時の減少割合は小さかった.

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Claims 11

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Quercus serrata seedling emergence was significantly lower at 5% soil moisture than under other treatments and than Quercus variabilis.

Taxon
Quercus serrataQuercus serratat0
Treatment
土壌水分5%区e0
Outcome
コナラの実生の発生率e0
Direction
低かったe0
Comparator
他の処理区e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus serrata
Quercus serrata · TaxonKENPEI · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Quercus serrata”

✓ located verbatim in the source · title, characters 76–91 · show in text ↑
e0

“コナラの実生の発生率は土壌水分5%区で他の処理区に比べても, また, アベマキに比べても有意に低かった”

✓ located verbatim in the source · abstract, characters 92–143 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The emergence period was shortest at 20% soil moisture for both oak species.

Taxon
Quercus serrataand Quercus variabilist0
Treatment
土壌水分20%区e0
Outcome
実生の発生開始日から発生完了日までの期間e0
Direction
最も短かったe0

Not reportedComparator

Verbatim

t0

“Quercus serrataand Quercus variabilis”

✓ located verbatim in the source · title, characters 76–113 · show in text ↑
e0

“実生の発生開始日から発生完了日までの期間は, 両樹種とも土壌水分20%区で最も短かった”

✓ located verbatim in the source · abstract, characters 144–187 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Seedling survival did not differ among treatments or between oak species.

Taxon
Quercus serrataand Quercus variabilist0
Outcome
実生の生存率e0
Direction
違いはなかったe0

Verbatim

t0

“Quercus serrataand Quercus variabilis”

✓ located verbatim in the source · title, characters 76–113 · show in text ↑
e0

“両樹種の実生の生存率は処理区間や樹種間による違いはなかった”

✓ located verbatim in the source · abstract, characters 188–217 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Organ dry weight tended to increase with relative light intensity in both species.

Taxon
Quercus serrataand Quercus variabilist0
Treatment
相対照度e0
Outcome
各器官の乾重e0
Direction
大きくなるe0

Verbatim

t0

“Quercus serrataand Quercus variabilis”

✓ located verbatim in the source · title, characters 76–113 · show in text ↑
e0

“両樹種の各器官の乾重は相対照度が高くなるほど, また, 土壌含水率が高くなるほど大きくなる傾向があった”

✓ located verbatim in the source · abstract, characters 218–269 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Organ dry weight tended to increase with soil moisture in both species.

Taxon
Quercus serrataand Quercus variabilist0
Treatment
土壌含水率e0
Outcome
各器官の乾重e0
Direction
大きくなるe0

Verbatim

t0

“Quercus serrataand Quercus variabilis”

✓ located verbatim in the source · title, characters 76–113 · show in text ↑
e0

“両樹種の各器官の乾重は相対照度が高くなるほど, また, 土壌含水率が高くなるほど大きくなる傾向があった”

✓ located verbatim in the source · abstract, characters 218–269 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reducing soil moisture from 20% to 10% caused a small proportional dry-weight decrease in Quercus serrata.

Taxon
Quercus serrataQuercus serratat0
Treatment
土壌含水率が20%から10%に減少e0
Outcome
コナラでは各器官の乾重の減少割合e0
Direction
小さかったe0
Comparator
アベマキe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus serrata
Quercus serrata · TaxonKENPEI · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Quercus serrata”

✓ located verbatim in the source · title, characters 76–91 · show in text ↑
e0

“土壌含水率が20%から10%に減少すると, コナラでは各器官の乾重の減少割合が小さかったのに対して, アベマキではその減少割合が大きかった”

✓ located verbatim in the source · abstract, characters 271–340 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reducing soil moisture from 20% to 10% caused a large proportional dry-weight decrease in Quercus variabilis.

Taxon
Quercus variabilisQuercus variabilist0
Treatment
土壌含水率が20%から10%に減少e0
Outcome
アベマキではその減少割合e0
Direction
大きかったe0
Comparator
コナラe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus variabilis
Quercus variabilis · TaxonVelela · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Quercus variabilis”

✓ located verbatim in the source · title, characters 95–113 · show in text ↑
e0

“土壌含水率が20%から10%に減少すると, コナラでは各器官の乾重の減少割合が小さかったのに対して, アベマキではその減少割合が大きかった”

✓ located verbatim in the source · abstract, characters 271–340 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

The top-to-root ratio and leaf dry-weight share remained approximately constant as light declined in Quercus serrata.

Taxon
Quercus serrataQuercus serratat0
Treatment
相対照度が低下e0
Outcome
T/R比や葉の乾重の割合e0
Direction
ほぼ一定e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus serrata
Quercus serrata · TaxonKENPEI · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Quercus serrata”

✓ located verbatim in the source · title, characters 76–91 · show in text ↑
e0

“コナラでは相対照度が低下してもT/R比や葉の乾重の割合はほぼ一定であった”

✓ located verbatim in the source · abstract, characters 341–377 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The top-to-root ratio and leaf dry-weight share tended to rise as light fell from 10% to 3% in Quercus variabilis.

Taxon
Quercus variabilisQuercus variabilist0
Treatment
相対照度が10%から3%に低下e0
Outcome
T/R比や葉の乾重の割合e0
Direction
増加e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus variabilis
Quercus variabilis · TaxonVelela · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Quercus variabilis”

✓ located verbatim in the source · title, characters 95–113 · show in text ↑
e0

“アベマキでは相対照度が10%から3%に低下するとT/R比や葉の乾重の割合が増加する傾向があった”

✓ located verbatim in the source · abstract, characters 384–431 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The top-to-root ratio and leaf dry-weight share tended to decline as soil moisture fell in both species.

Taxon
Quercus serrataand Quercus variabilist0
Treatment
土壌含水率e0
Outcome
T/R比や葉の乾重の割合e0
Direction
減少e0

Verbatim

t0

“Quercus serrataand Quercus variabilis”

✓ located verbatim in the source · title, characters 76–113 · show in text ↑
e0

“両樹種とも土壌含水率が低くなるほどT/R比や葉の乾重の割合が減少する傾向があった”

✓ located verbatim in the source · abstract, characters 437–477 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The top-to-root ratio and leaf dry-weight share had only a small proportional decrease in Quercus serrata when soil moisture fell from 20% to 10%.

Taxon
Quercus serrataQuercus serratat0
Treatment
土壌含水率が20%から10%に低下e0
Outcome
減少割合e0
Direction
小さかったe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Quercus serrata
Quercus serrata · TaxonKENPEI · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Quercus serrata”

✓ located verbatim in the source · title, characters 76–91 · show in text ↑
e0

“コナラでは土壌含水率が20%から10%に低下した時の減少割合は小さかった”

✓ located verbatim in the source · abstract, characters 480–516 · show in text ↑